syzkaller login: [   87.982117][ T3141] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'.
[   87.998103][ T3141] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'.
[   89.663525][ T3141] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'.
Warning: Permanently added '[localhost]:60669' (ECDSA) to the list of known hosts.
1970/01/01 00:01:41 fuzzer started
1970/01/01 00:01:44 dialing manager at localhost:34223
1970/01/01 00:01:45 syscalls: 2890
1970/01/01 00:01:45 code coverage: CONFIG_KCOV is not enabled
1970/01/01 00:01:45 comparison tracing: CONFIG_KCOV is not enabled
1970/01/01 00:01:45 extra coverage: CONFIG_KCOV is not enabled
1970/01/01 00:01:45 setuid sandbox: enabled
1970/01/01 00:01:45 namespace sandbox: enabled
1970/01/01 00:01:45 Android sandbox: /sys/fs/selinux/policy does not exist
1970/01/01 00:01:45 fault injection: enabled
1970/01/01 00:01:45 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
1970/01/01 00:01:45 net packet injection: enabled
1970/01/01 00:01:45 net device setup: enabled
1970/01/01 00:01:45 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist
1970/01/01 00:01:45 devlink PCI setup: PCI device 0000:00:10.0 is not available
1970/01/01 00:01:45 USB emulation: enabled
1970/01/01 00:01:45 hci packet injection: /dev/vhci does not exist
1970/01/01 00:01:45 wifi device emulation: /sys/class/mac80211_hwsim/ does not exist
1970/01/01 00:01:45 802.15.4 emulation: /sys/bus/platform/devices/mac802154_hwsim does not exist
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x10 pc=0x290708]

goroutine 1 [running]:
github.com/google/syzkaller/prog.(*ChoiceTable).Enabled(...)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prio.go:239
main.(*Fuzzer).checkDisabledCalls(0x400027cd00, 0x4000078600)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:469 +0x58
main.(*Fuzzer).deserializeInput(0x400027cd00, 0x4000184000, 0xa1, 0xa1, 0x0)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:460 +0xf8
main.(*Fuzzer).addCandidateInput(0x400027cd00, 0x4000184000, 0xa1, 0xa1, 0x101)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:438 +0x40
main.(*Fuzzer).poll(0x400027cd00, 0x40003a8f01, 0x0, 0x4000012f08)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:409 +0x3a0
main.main()
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:273 +0xedc

VM DIAGNOSIS:
12:10:43  Registers:
info registers vcpu 0
 PC=ffff800013194ab8 X00=ffff800013194ab0 X01=ffff800013194af0
X02=0000000000000000 X03=1fffe0000d55e380 X04=00000000f204f1f1
X05=ffff700002000f7e X06=dfff800000000000 X07=00000000f1f1f1f1
X08=ffff800015f0ac00 X09=1fffe000013f9138 X10=0000000000000007
X11=1fffe000013f912b X12=0000000000000033 X13=0000000000000001
X14=1ffff00002000f5c X15=ffff00000a9a2080 X16=0000000000000000
X17=0000000000000000 X18=ffff00000a9a20b8 X19=ffff8000161777c0
X20=00000000000051b6 X21=00000000000051b6 X22=dfff800000000000
X23=00000018727cda00 X24=0000000000000001 X25=ffff800016177d40
X26=ffff00006aaf8628 X27=ffff00006aaf86a8 X28=dfff800000000000
X29=ffff800010007cb0 X30=ffff800013194b08  SP=ffff800010007cb0
PSTATE=600000c5 -ZC- EL1h     FPCR=00000000 FPSR=00000000
Q00=0000000000000000:0000000000000000 Q01=969e80bb0e3c3807:eadc468290b2c07e
Q02=7d56f37cbeeaa4b6:8cd6183144449585 Q03=e15f623079221462:9c55f0fd08737457
Q04=ba2b782930e23031:96139da5f35c2a22 Q05=542eba26de8a6edb:a218ee1094a8e2c8
Q06=1911fdb53c3263a6:4eb782c34b26ed58 Q07=e8533c76d4d9e9de:3a9fc763e4389e9f
Q08=0000000000000000:0000000000000000 Q09=0000000000000000:0000000000000000
Q10=0000000000000000:0000000000000000 Q11=0000000000000000:0000000000000000
Q12=0000000000000000:0000000000000000 Q13=0000000000000000:0000000000000000
Q14=0000000000000000:0000000000000000 Q15=0000000000000000:0000000000000000
Q16=b732d4658ceffaaf:5c03f61f1f710c31 Q17=1495839ab395565c:53583e0f02fbdc0c
Q18=f06a2b77d0d5f174:312982a134664e12 Q19=7bec7f9e213f7434:64f8e78294bb1387
Q20=7473998f7ce78b46:40b4e10fa1ae3ad7 Q21=8f3dfdab1ca289f6:aacc3fba75bc8fd5
Q22=3c09f70f39b23b51:907bb62ab228040e Q23=0a6d8e60eead56f1:96d5c6c63d641d5b
Q24=6b20657479622d32:3320646e61707865 Q25=28dbb1efd0ec06dd:8bcdb6faf946c63b
Q26=3a46a89058a1715c:bca8ef579d254fd7 Q27=2b00000000000000:000000000000000e
Q28=2b00000000000000:000000000000000f Q29=2b00000000000000:0000000000000010
Q30=2b00000000000000:000000000000000e Q31=0000000000000000:0000000000000004
info registers vcpu 1
 PC=ffff8000101fdb50 X00=ffff00000a2d4ec8 X01=ffff800014530920
X02=0000000000000002 X03=0000000000000000 X04=0000000000000000
X05=0000000000000000 X06=000000000000003e X07=00000000006935fd
X08=0000000000000040 X09=0000000000000019 X10=0000000000000007
X11=0000000000696ad9 X12=0000000000693448 X13=000000000074e7c0
X14=0000000000000000 X15=0000000000000001 X16=0000000000290708
X17=00000000002906b0 X18=0000000000000000 X19=0000000000000098
X20=00000040000379b0 X21=000000400002c800 X22=0000004000046000
X23=0000000000000000 X24=0000000000000000 X25=0000000000000000
X26=0000004000465558 X27=0000000000000000 X28=0000004000000c00
X29=0000004000037938 X30=00000000000432b8  SP=ffff800018548000
PSTATE=600003c5 -ZC- EL1h     FPCR=00000000 FPSR=00000010
Q00=0000000000000000:0000000000000000 Q01=662d7a79732f7265:6c6c616b7a79732f
Q02=006f672e72657a7a:75662f72657a7a75 Q03=0000000000000000:0000000000000000
Q04=4000000000000000:0000000000000000 Q05=4010040140100401:4010040140100401
Q06=4000000000000000:4000000000000000 Q07=0000000000000000:0000000000000000
Q08=0000000000000000:0000000000000000 Q09=0000000000000000:0000000000000000
Q10=0000000000000000:0000000000000000 Q11=0000000000000000:0000000000000000
Q12=0000000000000000:0000000000000000 Q13=0000000000000000:0000000000000000
Q14=0000000000000000:0000000000000000 Q15=0000000000000000:0000000000000000
Q16=0000000000000000:0000000000000000 Q17=0000000000000000:0000000000000000
Q18=0000000000000000:0000000000000000 Q19=0000000000000000:0000000000000000
Q20=0000000000000000:0000000000000000 Q21=0000000000000000:0000000000000000
Q22=0000000000000000:0000000000000000 Q23=0000000000000000:0000000000000000
Q24=0000000000000000:0000000000000000 Q25=0000000000000000:0000000000000000
Q26=0000000000000000:0000000000000000 Q27=0000000000000000:0000000000000000
Q28=0000000000000000:0000000000000000 Q29=0000000000000000:0000000000000000
Q30=000000000000001e:000000008a515923 Q31=0000000000000000:0000000000000000